Auxiliary straight moving device of tractor

Abstract

The utility model relates to the technical field of tractors, in particular to an auxiliary straight moving device of a tractor, which comprises a tractor head, a front connecting seat connected to the rear side of the tractor head, a carriage arranged on the rear side of the tractor head, a rear connecting seat connected to the front side of the carriage, and an auxiliary straight moving mechanism mounted between the front connecting seat and the rear connecting seat. The auxiliary straight movement mechanism comprises a sleeve, a rotating shaft is rotationally installed on the inner side of the sleeve, a tooth groove is formed in the inner side of the sleeve, a magnetic sliding block is correspondingly arranged on the inner side of the tooth groove, an installation groove is formed in the inner side of the rotating shaft, the magnetic sliding block is slidably connected with the installation groove, an electromagnetic coil is fixedly installed on the inner side of the installation groove, and a bearing groove is formed in the side face of the tooth groove. The two auxiliary straight moving mechanisms, the two tooth grooves and the two magnetic sliding blocks are symmetrically arranged, the stability of the structure during limiting is kept, the control over the electromagnetic sliding blocks is pushed by the magnetic force generated by the electromagnetic coil, the response is sensitive, the structure is simple, and the structural stability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to a tractor straight-moving auxiliary device. Background Art

[0002] A tractor is an important agricultural machine, mainly used to pull and drive working machinery to complete various mobile operations.

[0003] The utility model patent with reference authorization announcement number CN216994522U discloses an auxiliary straight-moving device for a tractor in the tractor field, including a connecting plate, a movable plate detachably installed on one side of the connecting plate, a detection component provided on the upper part of the movable plate, the detection component including a first detection part and a second detection part, the upper part of the movable plate is fixedly connected to the first detection part and the second detection part, the first detection part includes a fixed tube, a round-headed push rod is installed on the upper part of the fixed tube through a spring, a button is also fixedly installed inside the fixed tube, and the lower part of the round-headed push rod contacts the button.

[0004] In the above patent, a cylinder is provided at the shaft connection, and the stroke of the cylinder is used to limit the rotation angle between the frame and the mounting seat. However, the structural stability of this limiting component is poor, and the stability of the rotating connection is difficult to ensure in actual application. To address the above technical drawbacks, we have proposed a tractor auxiliary straight-moving device. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and provides a tractor straight-moving auxiliary device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A tractor straight-moving auxiliary device comprises a tractor head, a front connecting seat being connected to the rear side of the tractor head, a carriage being provided at the rear side of the tractor head, a rear connecting seat being connected to the front side of the carriage, an auxiliary straight-moving mechanism being installed between the front connecting seat and the rear connecting seat; the auxiliary straight-moving mechanism comprises a sleeve, a rotating shaft being rotatably installed on the inner side of the sleeve, a tooth groove being provided on the inner side of the sleeve, a magnetic slider being correspondingly provided on the inner side of the tooth groove, a mounting groove being provided on the inner side of the rotating shaft, the magnetic slider being slidably connected to the mounting groove, an electromagnetic coil being fixedly installed on the inner side of the mounting groove, a bearing groove being provided on the side surface of the tooth groove, a rotating bearing being installed on the inner side of the bearing groove, and the inner side of the rotating bearing being sleeved on the outer ring of the rotating shaft.

[0008] Furthermore, a vehicle controller is installed on the tractor head, and the vehicle controller is electrically connected to the electromagnetic coil.

[0009] Furthermore, the outer end of the magnetic slider is provided with a protruding tooth adapted to the tooth groove.

[0010] Furthermore, an insulating pad is installed at the end of the electromagnetic coil.

[0011] Furthermore, the bearing grooves, tooth grooves and rotary bearings are all symmetrically arranged along the middle portion of the sleeve.

[0012] Furthermore, a first circular hole is provided on the front connecting seat, and a plurality of positioning connecting holes are evenly distributed outside the first circular hole.

[0013] Furthermore, the rotating shaft is slidably inserted into the inner side of the first circular hole, the upper end of the rotating shaft is connected to a top disc, and the top disc is screwed to the upper side of the front connecting seat.

[0014] Furthermore, a second circular hole is provided on the rear connecting seat, a plurality of limiting grooves are provided on the inner side of the second circular hole, a limiting strip adapted to the limiting groove is fixedly connected to the outer wall of the sleeve, and the sleeve is inserted into the inner side of the second circular hole.

[0015] Furthermore, a pressure bearing is installed on the rear connecting seat, and the upper side of the pressure bearing is in contact with the bottom of the front connecting seat.

[0016] Furthermore, a bottom disc is threadedly mounted on the bottom of the rotating shaft, and the upper side of the bottom disc is in sliding contact with the bottom of the sleeve.

[0017] Compared with the related art, the tractor straight driving auxiliary device proposed in this utility model has the following features:

[0018] Beneficial effects:

[0019] In the present utility model, a tractor auxiliary straight-moving device is described, through the auxiliary straight-moving mechanism set up, the entire auxiliary straight-moving mechanism is set at the connection of the rotating shaft, and the electromagnetic coil set on the inner side of the rotating shaft is used to push the magnetic slider to engage with the tooth groove of the sleeve, so as to limit the rotational freedom between the rotating shaft and the sleeve, thereby limiting the head of the tractor and the rear side of the vehicle box to maintain a straight state when the tractor is moving, thereby playing the role of assisting straight-moving, reducing the disadvantages of manpower consuming a long time to support the steering wheel, in addition, the tooth groove and the magnetic slider are symmetrically arranged in two groups to maintain the stability of the structure when limiting, and the control of the electromagnetic slider is driven by the magnetic force generated by the electromagnetic coil, and the response is sensitive, and the structure is simple and the structural stability is better, which enhances the practicality of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a tractor straight driving auxiliary device proposed in this utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of a tractor straight driving auxiliary device proposed in this utility model Figure 2 ;

[0022] Figure 3 This is a partial three-dimensional structural diagram of a tractor straight driving auxiliary device proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the partial disassembly of the three-dimensional structure of a tractor straight driving auxiliary device proposed in the utility model;

[0024] Figure 5 The utility model is a schematic diagram of a partial three-dimensional cross-section structure of a tractor straight driving auxiliary device proposed by the utility model.

[0025] In the figure: 1. Tractor head; 2. Vehicle controller; 3. Front connecting seat; 31. First circular hole; 32. Positioning connecting hole; 4. Carriage; 5. Rear connecting seat; 51. Second circular hole; 52. Limiting groove; 53. Pressure bearing; 6. Auxiliary straight-moving mechanism; 61. Sleeve; 62. Limiting bar; 63. Bearing groove; 64. Tooth groove; 65. Rotating shaft; 66. Rotating bearing; 67. Mounting groove; 68. Magnetic slider; 69. Electromagnetic coil; 610. Insulating pad; 611. Bottom disc; 612. Top disc. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0027] Reference Figure 1-5 , a tractor auxiliary straight-moving device: includes a tractor head 1, a front connecting seat 3 is connected to the rear side of the tractor head 1, a carriage 4 is provided on the rear side of the tractor head 1, a rear connecting seat 5 is connected to the front side of the carriage 4, an auxiliary straight-moving mechanism 6 is installed between the front connecting seat 3 and the rear connecting seat 5; the auxiliary straight-moving mechanism 6 includes a sleeve 61, a rotating shaft 65 is rotatably installed on the inner side of the sleeve 61, a tooth groove 64 is opened on the inner side of the sleeve 61, a magnetic slider 68 is correspondingly provided on the inner side of the tooth groove 64, a mounting groove 67 begins to be provided on the inner side of the rotating shaft 65, the magnetic slider 68 is slidably connected to the mounting groove 67, an electromagnetic coil 69 is fixedly installed on the inner side of the mounting groove 67, a bearing groove 63 is provided on the side of the tooth groove 64, a rotating bearing 66 is installed on the inner side of the bearing groove 63, and the inner side of the rotating bearing 66 is sleeved on the outer ring of the rotating shaft 65.

[0028] By setting up in the above manner, the electromagnetic coil 69 can be energized in the positive direction to change the magnetic pole of the electromagnetic coil 69 toward one end of the magnetic slider 68. When the magnetic poles of the electromagnetic coil 69 and the magnetic slider 68 are the same in the corresponding directions, the magnetic slider 68 is driven to slide toward the outside of the mounting groove 67 by the magnetic repulsion force, so that the protruding teeth on the outside of the magnetic slider 68 are engaged with the inner side of the tooth groove 64, thereby realizing the restriction of the rotational freedom between the rotating shaft 65 and the sleeve 61. When the magnetic poles of the electromagnetic coil 69 and the magnetic slider 68 are opposite in the corresponding directions, the magnetic attraction action drives the magnetic slider 68 to retract to the inside of the mounting groove 67. At this time, the rotating shaft 65 and the sleeve 61 maintain a relative rotation relationship.

[0029] In this embodiment, a vehicle controller 2 is installed on the tractor head 1 , and the vehicle controller 2 is electrically connected to the electromagnetic coil 69 .

[0030] Through the above-mentioned arrangement, the vehicle controller 2 can control the rotational freedom between the rotating shaft 65 and the sleeve 61 by controlling the power supply direction of the electromagnetic coil 69, and further control the rotational freedom between the tractor head 1 and the carriage 4, thereby maintaining a straight state between the tractor head 1 and the carriage, so that the tractor maintains a straight-moving state, thereby having an auxiliary straight-moving function.

[0031] In this embodiment, the outer end of the magnetic slider 68 is provided with a protruding tooth adapted to the tooth groove 64 .

[0032] Through the above-mentioned arrangement, when the outer side of the magnetic slider 68 abuts against the tooth groove 64, the protruding teeth on the outer side of the magnetic slider 68 engage with the tooth groove 64 and have multiple engagement points, thereby enhancing the stability of the rotation limit between the rotating shaft 65 and the sleeve 61.

[0033] In this embodiment, an insulating spacer 610 is attached to the end of the electromagnetic coil 69 .

[0034] By configuring in the above manner, the insulating pad 610 provides insulation to the end of the electromagnetic coil 69 , and at the same time provides a good protective buffering effect when the magnetic slider 68 and the insulating pad 610 are magnetically attracted to each other.

[0035] In this embodiment, the bearing groove 63 , the tooth groove 64 and the rotary bearing 66 are all symmetrically arranged along the middle portion of the sleeve 61 .

[0036] By configuring in the above manner, the rotation between the sleeve 61 and the rotating shaft 65 and the rotation limiting process can achieve better structural stability.

[0037] In this embodiment, a first circular hole 31 is provided on the front connecting seat 3, and a plurality of positioning connecting holes 32 are evenly distributed on the outside of the first circular hole 31. The rotating shaft 65 slides and is inserted into the inner side of the first circular hole 31. The upper end of the rotating shaft 65 is connected to a top disc 612, and the top disc 612 is screwed to the upper side of the front connecting seat 3. A second circular hole 51 is provided on the rear connecting seat 5, and a plurality of limiting grooves 52 are provided on the inner side of the second circular hole 51. A limiting strip 62 that is adapted to the limiting groove 52 is fixedly connected to the outer wall of the sleeve 61, and the sleeve 61 is inserted into the inner side of the second circular hole 51. A bottom disc 611 is screwed on the bottom of the rotating shaft 65, and the upper side of the bottom disc 611 is in sliding contact with the bottom of the sleeve 61.

[0038] Through the above-mentioned arrangement, the rotating shaft 65 maintains a screw-fixed relationship with the front connecting seat 3 through the top disc 612, and the sleeve 61 maintains a rotational relationship with the rotating shaft 65 through the rotating bearing 66. At the same time, the sleeve 61 is inserted into the inner side of the second circular hole 51 of the rear connecting seat 5, and the limiting bar 62 is engaged with the limiting groove 52, so that the sleeve 61 and the rear connecting seat 5 have no rotational freedom, and then the rear connecting seat 5 maintains an indirect rotational relationship with the front connecting seat 3 through the sleeve 61 and the rotating bearing 66, thereby limiting the rotational freedom between the rotating shaft 65 and the sleeve 61, and further limiting the rotational freedom between the front connecting seat 3 and the rear connecting seat 5.

[0039] In this embodiment, a pressure bearing 53 is installed on the rear connecting seat 5 , and the upper side of the pressure bearing 53 is in contact with the bottom of the front connecting seat 3 .

[0040] Through the above-mentioned arrangement, the pressure bearing 53 is arranged on the inner side of the junction gap between the front connecting seat 3 and the rear connecting seat 5, thereby reducing the friction loss at the junction of the front connecting seat 3 and the rear connecting seat 5 and improving practicality.

[0041] The working principle of the tractor straight driving auxiliary device provided by the utility model is as follows:

[0042] During use, when the tractor is driving on a straight road for a long time, the electromagnetic coil 69 can be activated and energized through the vehicle controller 2, so that the magnetic poles between the electromagnetic coil 69 and the magnetic slider 68 are aligned, and then under the action of magnetic repulsion, the magnetic slider 68 is pushed to slide to the outside of the installation groove 67, so that the convex teeth on the outer side of the magnetic slider 68 engage with the tooth groove 64. At this time, the rotational freedom between the rotating shaft 65 and the sleeve 61 is restricted, so that the rotational connection between the front connecting seat 3 and the rear connecting seat 5 remains locked to the turntable, thereby keeping the tractor head 1 and the car body 4 in a straight state, so that the tractor has a straight-line maintenance function, avoiding the defect of long-term and labor-intensive support of the steering wheel. In addition, when it is necessary to turn, when the steering wheel is turned, the vehicle controller 2 automatically and quickly intervenes, reverses the magnetic poles between the electromagnetic coil 69 and the magnetic slider 68, and uses the magnetic attraction to retract the magnetic slider 68 into the inside of the installation groove 67, releasing the limiting effect of the rotational freedom. At this time, the turn can be made, and the response is fast, and subsequent turning actions will not be affected, thereby improving driving safety.

[0043] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tractor straight driving assist device, characterized in that: The invention comprises a tractor head (1), wherein the rear side of the tractor head (1) is connected to a front connecting seat (3), a carriage (4) is provided on the rear side of the tractor head (1), a rear connecting seat (5) is connected to the front side of the carriage (4), and an auxiliary straight-moving mechanism (6) is installed between the front connecting seat (3) and the rear connecting seat (5); The auxiliary straight-moving mechanism (6) includes a sleeve (61), a rotating shaft (65) is rotatably installed on the inner side of the sleeve (61), a tooth groove (64) is provided on the inner side of the sleeve (61), a magnetic slider (68) is correspondingly provided on the inner side of the tooth groove (64), a mounting groove (67) is provided on the inner side of the rotating shaft (65), the magnetic slider (68) is slidably connected to the mounting groove (67), an electromagnetic coil (69) is fixedly installed on the inner side of the mounting groove (67), a bearing groove (63) is provided on the side of the tooth groove (64), a rotating bearing (66) is installed on the inner side of the bearing groove (63), and the inner side of the rotating bearing (66) is sleeved on the outer ring of the rotating shaft (65).

2. The tractor straight driving assist device according to claim 1, characterized in that: A vehicle controller (2) is installed on the tractor head (1), and the vehicle controller (2) is electrically connected to the electromagnetic coil (69).

3. The tractor straight driving assist device according to claim 1, characterized in that: The outer end of the magnetic slider (68) is provided with a convex tooth adapted to the tooth groove (64).

4. The tractor straight driving assist device according to claim 1, characterized in that: An insulating pad (610) is installed at the end of the electromagnetic coil (69).

5. The tractor straight driving assist device according to claim 1, characterized in that: The bearing groove (63), tooth groove (64) and rotary bearing (66) are all symmetrically arranged along the middle part of the sleeve (61).

6. The tractor straight driving assist device according to claim 1, characterized in that: A first circular hole (31) is provided on the front connecting seat (3), and a plurality of positioning connecting holes (32) are evenly distributed outside the first circular hole (31).

7. The tractor straight driving assist device according to claim 1, characterized in that: The rotating shaft (65) is slidably inserted into the inner side of the first circular hole (31), and the upper end of the rotating shaft (65) is connected to a top disc (612), and the top disc (612) is screwed to the upper side of the front connecting seat (3).

8. The tractor straight driving assist device according to claim 1, characterized in that: The rear connecting seat (5) is provided with a second circular hole (51), the inner side of the second circular hole (51) is provided with a plurality of limiting grooves (52), the outer wall of the sleeve (61) is fixedly connected with a limiting strip (62) adapted to the limiting grooves (52), and the sleeve (61) is inserted into the inner side of the second circular hole (51).

9. The tractor straight driving assist device according to claim 1, characterized in that: A pressure bearing (53) is installed on the rear connecting seat (5), and the upper side surface of the pressure bearing (53) is in contact with the bottom of the front connecting seat (3).

10. The tractor straight driving assisting device according to claim 1, characterized in that: A bottom disc (611) is threadedly mounted on the bottom of the rotating shaft (65), and the upper side of the bottom disc (611) is in sliding contact with the bottom of the sleeve (61).

Images